Method of making cages for bearings



Feb. 6, 1923. v

T. V. BUCKWALTER.

METHOD oF MAKING @AGES Foa BEARINGS.

ORIGINAL FILED JULY 18.1918.. 2 SHEETS-,SHEET l.

Feb. 6, 1923.

T. Vl BUCKWALTER.

METHOD oF MAKING cms Foa BEAmNGs.

ORIGlNAL FILED JULY 18| 1918. 2 SHEETS-SHEET 2- Patented 1F eb.

UNTED STATES TRACY y. BUCKWALTER, 'or C BEARING COMPANY, o

Original application led July 18, 1918, Serialv No. 245,443. Divided ANTON, OHIO, ASSIGNORSTO THE F CANTON, OHIO,

rrr ference.

Timaru ROLLER A conroaarrom or oHIo.

METHOD OF MAKING CAGES FOR BEARINGS.

and this summation area august 15,

1921. Serial No. 492,445.

Be it known TER, a citizen of that the I, TRACY V. BUCKWAL- United States, residing at Canton, in the county of Stark and State of Oh io, have invented an Improved Method of Making Cages for Bearings, of which the following is a specification.

. (for 245,448) now of which the sion madev and is invention relates to anti-friction bearings and it comprises an improved cage which I have made ters Patent of the United ap lication for Lettates, Serial No.

Patent 1,395,385, Nov. l, 1921, present application is a diviassembled inthe bearing byan lmproved method. A

rimary objects of the improvementsare to provide a cage that will conformbetter to the contour of the rollers with improved control thereof, per

number of rollers under duce the weight given use, and r tions, together ture.

mit the use of an increased given, conditions, reof the cage required for a educe the number of operawith the cost of manufac- In the manufacture of cages for cone bearlngs 1n accordancee preferably prac prise cutting metal character into tubular with my invention, as ticed, the operatlons comsections of the yrequired length, die shaping the sections to the desired conical forms, perforating the conical blanks to provide roughly seats separated by bridges for therollers, and'forming such bridges and seatsapproximately to the vcontour of a nd so as to control the rollers, the forming operations comprising not only the production of the desired contact surfaces but also the bendingof the bridges to facilitate assembly of Ae operation the parts if desired. s may be varied as, for instance, by stamping blanks out of flat stock and pressmg such blanks to conical form.

AThe characteristic features of m im:-

provements are fully set forth in the follwing description and the accompanying drawings in illustration thereof. j

. In the'drawlng, cylindrical section ter required for disk cut from flat may be pressed,

a cageblank pr tions shown in sectional end v1 Fig. v1 is aside view of a of tubing of the characmaking a cage; Fig. 2 is a stock from which the cage Fig. 3 is a side elevation of oduced ,by shaping the sec- Fig. l or 2; Fig. 4 is a part ew of the conical blank of ess of assembly produce the cage blank of tubing of the required Fig. `2 after perforation to produce roughly the seats and bridges for holding the rollers; Fig. 5 is a'broken side elevation of the perforated cage shown-in Fig. 4; Fig. 6 is a broken side elevation of a bearing in procwith the bridges of the cage pressed to form andbent outwardly to fa= cilitate the assembly of the parts; Fig. 7 is a broken'side elevation of a finished bearing made in accordance 4with my improvements; and Fig. 8 is a part sectional end view taken on the lineS-S of Fig. 7.

The cylindrical blank of Fig. l and the Hat diskiof Fig. 2 are pressed by means of dies to produce the con-ical blank of Fig. 3, and the latter is perforated b punchin to Figs. 4 an 5, containing the apertures 1 separated by the ribs 2, which areparallel to the conei elements and approximately rectangular vin cross section as shown here. The ribs 2 are cold pressed to flow the metal and provide the bridges 3, is illustrated in Figs. 6 to 8 inclusive. These bridges 3 have respectively the conc-ave conical surfaces 3a converging inwardly tothe inner edges 3b which are projected orbowed inwardly by extrusion, of the metal,` the outer-'surfaces 3? of such ribs being expanded by jacent `surfaces Vof adjacent bridges thus formed provide conical bearings conforming to the surfaces of the respective rollers 4 to be seated between them and to be limited in end movement by the continuous circular ends 5 and 5 of the cages whichvform the ends of the seats.

As illustrated in Fig. 6, in the assembly of the bearing,the bridges 3 may be bent outwardly and fthe rollers 4 entered in the seats formed thereby to facilitate the entry of the cone 6, the latter bei provided at its larger end with the circiiihr rib 6a for zngaging the conical surfaces 4a at the en engaging the circular grooves or channels 4" 1n vthe smaller ends of the rollers.

After the assemblageof the parts, the

bridges 3 are -bent inwardly sothat their surfaces 3a conform p to the surfaces of the rollersiwith a workin lng 'controlled'thereby so asto maintain their correct worhng relations It will with the concentric circular/rib 6" for the operation. The adr igger ends of the rollers and at its smaller be observed that the control exercised upon the rollers is facilitated by the comparatively large are of the curved surfaces of the bridges, such surfaces being extended by the described extrusion or expansion of the metal so that the outer surfaces of such ribs are spread and the inner edges project beyond the usual or general interior contour which would be indicated by the surface of the cone contacting with the inner` surfaces of the parts 5 and 5.

Having described my invention, I claim:

1. The method of makin-g cages for antifriction bearings which consists in pressing a blank to a desired form, perforating said form to provide apertures separated by ribs, and shaping said ribs by flowing the metal thereof so as to provide surfaces conforming substantially with the surfaces of rolling devices adapted to be engaged thereby.

2. The method of. making a solid cage for conical roller bearings which consists in pressing ablank to the forni of a cone, punching said cone with the removal of metal sections to form end rings with connecting bridges providing apertures to forni roller seats, and pressing toward each other the inner edges of each bridge so as to provide bearing surfaces for said rollers.

3. The method of making cages lfor antifriction bearings which comprises the production of a conical blank having ribs separated by apertures andpressing said ribs so as to expand the outer parts thereof and contract the bodies thereof from said outer parts to inwardly projecting edges, with the production of converging conical surfaces.

4. The method which consists in forming a cage having ribs separated by apertures, pressing said ribs outwardly, placing roller's in said apertures, placing a bearing element within the circle of said rollers', and pressing said ribs inwardly to engage said rollers with said bearing element.

The method of making cages for roller bearings which consists in pressing a cage blank to predetermined form, punching said blank so as to 'produce roller apertures separated by ribs', and forming said ribs so as 'to conform with the surfaces of rollers disposed in said apertures.

In testimony whereof I have hereunto set my name this 9th da of Au st, 1921.

TRACY BUC WALTER. 

